Question 979190
a=2,d=3
S=187
no of terms =n
{{{(n/2)*(2a+(n-1)*d)=187}}}
=> {{{(n/2)*(4+(n-1)*3)=187}}}
=> {{{(n/2)*(1+3n)=187}}}
=> {{{3n^2+n-374 = 0}}}
=> {{{n=11}}}